Please help. I know my computer was infected because the virus kept taking me to a popup which mimicked windows defender and kept asking me to buy the antivirus software. I was able to remove it and visit websites again but it is not completely gone. Whenever I surf the web and click a link, it takes me to an ad before anything else. Also everytime I turn on my computer it does a disc check. My cd/dvd drive was disables as well. I need help please. Thank you!